2016
DOI: 10.1002/admi.201600435
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Halloysites Stabilized Emulsions for Hydroformylation of Long Chain Olefins

Abstract: Halloysites as tubular alumosilicates are introduced as inexpensive natural nanoparticles to form and stabilize oil–water emulsions. This stabilized emulsion is shown to enable efficient interfacial catalytic reactions. Yield, selectivity, and product separation can be tremendously enhanced, e.g., for the hydroformylation reaction of dodecene to tridecanal. In perspective, this type of formulation may be used for oil spill dispersions. The key elements of the described formulations are clay nanotubes (halloysi… Show more

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Cited by 62 publications
(56 citation statements)
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“…Alternatively, different particle species could reduce the drop size more efficiently than the HDK H20 particles, which would be beneficial for the ratio of interfacial area to available mass transfer area. Other particle shapes, such as the cylindrical particles investigated by von Klitzing et al [8] or spherical mesoporous particles analyzed by Zhao et al [7], might not interlock, keep larger areas free for mass transfer, and promote the reaction.…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…Alternatively, different particle species could reduce the drop size more efficiently than the HDK H20 particles, which would be beneficial for the ratio of interfacial area to available mass transfer area. Other particle shapes, such as the cylindrical particles investigated by von Klitzing et al [8] or spherical mesoporous particles analyzed by Zhao et al [7], might not interlock, keep larger areas free for mass transfer, and promote the reaction.…”
Section: Discussionmentioning
confidence: 99%
“…The particles act as an emulsifying agent and can substitute surfactants in various processes, which is especially advantageous, e.g., in applications of cosmetics, biomedicine, or food industry . Another promising application is the use of particle‐stabilized emulsions, i.e., Pickering emulsions, as reaction media since they enable efficient catalytic reactions such as the hydroformylation of long‐chained olefins , , . Using specific ligands, the catalyst can be solubilized within particle‐stabilized droplets of an aqueous phase which are surrounded by an ambient organic phase .…”
Section: Introductionmentioning
confidence: 99%
“…Pristine halloysite was found to be almost nontoxic for live organisms and does not pollute the environment . Halloysite nanotubes do not affect the proliferation and viability of bacterial and yeast cells within the concentration range of 0.5–2.5 mg mL −1 . Higher concentrations led to slight reduction in growth that can be explained by the mechanistic effects on cells, possibly during the adsorption to cell walls or mechanic damage of membrane …”
Section: Biocompatibility Of Halloysite Nanotubesmentioning
confidence: 90%
“…Modified nanotubes with an hydrophobic lumen were obtained by the interactions of halloysite positive lumen and the head group of anionic surfactants ,,,. Pickering emulsions for oil spill remediation were obtained by mixing HNTs with anionic surfactants ,. It was proved that sodium alkanoates/HNTs hybrids can be used for bioremediation purposes as a consequence of their capacity to capture aromatic and aliphatic hydrocarbons from aqueous and gas phases .…”
Section: Introductionmentioning
confidence: 99%